Feature:1. Applicable Model: Universal motorhome roof vent fan is suitable for RVs, campers, caravans, ships, yachts and other large vehicles.2. 12V and Solar Power: Using 12V voltage for exhaust in rainy days and no sun. In good weather, solar vent can be selected via a independent switch.3. ABS Material: The exhaust fan is made of engineering ABS material, has good elasticity, which is not easy to age, and can cope with various harsh environments calmly.4. Protective Net: The dustproof and insect proof net is designed to prevent insects from entering the vehicle, and effectively block the garbage and dust from the outside.5. Energy Saving: The black panel in the exhaust fan has a solar energy conversion function and supports use without electricity, but cannot store electricity.Specification:Item Type: RV Roof Exhaust FanMaterial: ABSRated Voltage: DC12VSolar Speed: 1800 RpmAir Volume: 24CFMInstallation Hole Size: Approx. 118mm/4.6in Diameter CircleInstallation Thickness: Approx. 50-120mm/2.0-4.7in (Adjustable)Application: Solar exhaust, 12V power exhaust, using 12V voltage for exhaust in rainy days and no sun. In good weather, solar ventilation can be selected via a switch.Applicable Model: Suitable for RVs, campers, caravans, ships, yachts and other large vehicles.Package List:1 xRV Roof Exhaust Fan1 x Switch Cover5 x ScrewNote:The installation is a bit difficult, professional installation is recommended